/*
 * Type-safe wrapper for WebGL in GWT.
 * 
 * Copyright (C) 2010 Hao Nguyen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package gwt.g3d.resources.client;

import gwt.g3d.client.gl2.enums.DataType;

import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Specifies the data type and data size of the texture coordinate array.
 * This annotation can be used for {@link ExternalMeshResource}.
 * 
 * @author hao1300@gmail.com
 */
@Inherited
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface TexCoordArrayInfo {
  
  /**
   * Data type of the position array.
   */
  DataType dataType() default DataType.FLOAT;
  
  /**
   * Size of each element in the texture coordinate array, for example, if the 
   * texture coordinate array contain data for (x, y, z), then data size should 
   * be 3.
   */
  int dataSize() default 2;
}
